AD9742:  12-Bit, 210 MSPS TxDAC® D/A Converter

The AD9742 is the 12-bit member of the new third generation family in the TxDAC product line. This new family includes the AD9744 (14-bit), AD9742 (12-bit), and AD9740 (10-bit) high-speed ...More

AD9742:  12-Bit, 210 MSPS TxDAC® D/A Converter

Product Description

The AD9742 is the 12-bit member of the new third generation family in the TxDAC product line. This new family includes the AD9744 (14-bit), AD9742 (12-bit), and AD9740 (10-bit) high-speed TxDAC converters with a maximum sampling rate of 210 MSPS. The family is pin-compatible with the previous two generations (AD9764/AD9762/AD9760 and AD9754/AD9752/AD9750) with improved performance and lower power dissipation.

The TxDAC product line is optimized for the transmit signal path of communications systems. All of the devices, including the first two generations, share the same interface options, small outline package and pinout, providing an upward or downward component selection path based on performance, resolution, and cost. The AD974x family has lower power dissipation than previous generations, making all three converters suitable for portable and low power applications.



TxDAC is a registered trademark of Analog Devices.

Features

  • Pin-Compatible TxDAC Product Family
  • 28-lead SOIC, 28-lead TSSOP, and 32-LFCSP Packages
  • Excellent SFDR performance
  • SNR @ 5 MHz Output, 125 MSPS: 70 dB
  • Twos Complement or Straight
    Binary Data Format
  • Power Dissipation: 135 mW at
    3.3 V (Power-Down Mode: 15 mW)
  • On-Chip 1.20 V Reference

Diagrams

AD9742 Diagram
Functional Block Diagram for AD9742

Specifications

Resolution (Bits) 12bit
DAC Update Rate 210MSPS
DAC Settling Time 11ns
# DAC Outputs 1
DAC Type Current Out
DAC Input Format Par
Output FSR (Iout x Rload),Adj(Uni 2mA to Uni 20mA),User Def. Range/Offset
Ref Int/Ext Int/Ext
Supply Vnom Single(+3.3)
Pwr Diss (Max) 145mW
Package CSP,SOIC,SOP

AD5821A - 120 mA, Current Sinking, 10-Bit, I2C DAC

AD5025 - Fully Accurate 12-Bit VOUT DAC SPI Interface 2.7 V to 5.5 V in a TSSOP

AD5045 - Fully Accurate 14-Bit VOUT DAC SPI Interface 2.7 V to 5.5 V in a TSSOP

AD5065 - Fully Accurate 16-Bit VOUT DAC SPI Interface 2.7 V to 5.5 V in a TSSOP

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Part# Res (bits) Update Rate Settling Time # Outputs
AD9742 12 210MSPS 11ns 1
AD9753 12 300MSPS 11ns 1
AD9773 12 400MSPS 11ns 2
AD9740 10 210MSPS 11ns 1
AD9755 14 300MSPS 11ns 1
AD9744 14 210MSPS 11ns 1
AD9751 10 300MSPS 11ns 1